U.S. patent number 9,647,369 [Application Number 15/274,588] was granted by the patent office on 2017-05-09 for electrical receptacle connector.
This patent grant is currently assigned to Advanced-Connectek Inc.. The grantee listed for this patent is ADVANCED-CONNECTEK INC.. Invention is credited to Long-Fei Chen, Pin-Yuan Hou, Chung-Fu Liao, Yu-Lun Tsai, Dong Xiang, Da-Wei Zhu.
United States Patent |
9,647,369 |
Tsai , et al. |
May 9, 2017 |
Electrical receptacle connector
Abstract
An electrical receptacle connector includes a first insulated
member and a second insulated member that are received in a
metallic shell. A plurality of first receptacle terminals and a
plurality of second receptacle terminals are respectively held in
the first insulated member and the second insulated member. The
first insulated member includes a tongue portion. The second
insulated member includes a terminal positioning portion on the
surface of the first insulated member. The surface of the terminal
positioning portion and the surface of the tongue portion are at
the same horizontal plane. A surface texture of the terminal
positioning portion is different from a surface texture of the
tongue portion.
Inventors: |
Tsai; Yu-Lun (New Taipei,
TW), Hou; Pin-Yuan (New Taipei, TW), Liao;
Chung-Fu (New Taipei, TW), Chen; Long-Fei (New
Taipei, TW), Xiang; Dong (New Taipei, TW),
Zhu; Da-Wei (New Taipei, TW) |
Applicant: |
Name |
City |
State |
Country |
Type |
ADVANCED-CONNECTEK INC. |
New Taipei |
N/A |
TW |
|
|
Assignee: |
Advanced-Connectek Inc. (New
Taipei, TW)
|
Family
ID: |
54725962 |
Appl.
No.: |
15/274,588 |
Filed: |
September 23, 2016 |
Prior Publication Data
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|
|
|
Document
Identifier |
Publication Date |
|
US 20170085021 A1 |
Mar 23, 2017 |
|
Foreign Application Priority Data
|
|
|
|
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Sep 23, 2015 [CN] |
|
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2015 1 0608864 |
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01R
24/62 (20130101); H01R 12/716 (20130101); H01R
13/405 (20130101); H01R 4/02 (20130101); H01R
13/6581 (20130101); H01R 2107/00 (20130101); H01R
24/60 (20130101) |
Current International
Class: |
H01R
13/405 (20060101); H01R 13/6581 (20110101); H01R
12/71 (20110101); H01R 24/62 (20110101); H01R
4/02 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Gushi; Ross
Attorney, Agent or Firm: Muncy, Geissler, Olds & Lowe,
P.C.
Claims
What is claimed is:
1. An electrical receptacle connector, comprising: a second
terminal module comprising a plurality of second receptacle
terminals and a second insulated member integrally formed with the
second receptacle terminals, wherein each of the second receptacle
terminals comprises a second flat contact portion, the second
insulated member has a terminal positioning portion positioned with
the second flat contact portions, the terminal positioning portion
comprises a disposing surface, front ends of the second flat
contact portions are held in the disposing surface; a plurality of
first receptacle terminals on the second terminal module, wherein
the first receptacle terminals are integrally formed with a first
insulated member to form a first terminal module, the first
insulated member comprises a tongue portion, one of two opposite
surfaces of the tongue portion comprises an assembling surface, the
other surface of the tongue portion comprises a specific portion
opposite to the assembling surface, first flat contact portions of
the first receptacle terminals are positioned with the assembling
surface, and front ends of the first flat contact portions are held
in the assembling surface, the terminal positioning portion is held
in the tongue portion, the disposing surface of the terminal
positioning portion and the specific portion of the tongue portion
are at a same plane, and a surface texture of the terminal
positioning portion is different from a surface texture of the
specific portion; and a metallic shell comprising a receptacle
cavity for receiving the first terminal module and the second
terminal module.
2. The electrical receptacle connector according to claim 1,
wherein the first receptacle terminals are positioned by a
positioning block, so that positions of the first receptacle
terminals and distances between adjacent first receptacle terminals
are fixed, and wherein the positioning block is enclosed by the
first insulated member.
3. The electrical receptacle connector according to claim 1,
wherein each of the first receptacle terminals comprises a first
engaging portion extending from a front portion of the
corresponding first flat contact portion and engaged into the
tongue portion.
4. The electrical receptacle connector according to claim 1,
wherein each of the second receptacle terminals comprises a second
engaging portion extending from a front portion of the
corresponding second flat contact portion and engaged into the
terminal positioning portion.
5. The electrical receptacle connector according to claim 1,
wherein the first insulated member comprises a first base, the
tongue portion is extending from one end of the first base, the
second insulated member comprises a second base, the terminal
positioning portion is extending from one end of the second base,
the first base is integrally formed on the second base.
6. The electrical receptacle connector according to claim 5,
wherein a surface texture of the first base is different from a
surface texture of the second base.
7. The electrical receptacle connector according to claim 5,
wherein each of the first receptacle terminals further comprises a
first tail portion extending, from the corresponding first flat
contact portion, out of a bottom of the first base, each of the
second receptacle terminals further comprises a second tail portion
extending, from the corresponding second flat contact portion, out
of a bottom of the second base, the first tail portions are aligned
with the second tail portions in a staggered manner from a top view
thereof.
8. The electrical receptacle connector according to claim 5,
wherein the first insulated member comprises a thicken block on a
rear portion of the tongue portion and near to the first base and
the second base, the thicken block covers a portion between the
terminal positioning portion and the second base.
9. The electrical receptacle connector according to claim 5,
further comprising a first conductive sheet and a second conductive
sheet respectively on the first insulated member and the second
insulated member.
10. The electrical receptacle connector according to claim 9,
wherein the first conductive sheet has two first contact legs at
two sides thereof, the two first contact legs pass through two
first through holes of the first insulated member and are in
contact with two first ground terminals which are at two sides of
the first receptacle terminals, respectively.
11. The electrical receptacle connector according to claim 9,
wherein the second conductive sheet has two second contact legs at
two sides thereof, the two second contact legs pass through two
second through holes of the second insulated member and are in
contact with two second ground terminals which are at two sides of
the second receptacle terminals, respectively.
12. The electrical receptacle connector according to claim 1,
wherein the specific portion of the tongue portion comprises a
separating portion formed around a periphery of the terminal
positioning portion.
13. The electrical receptacle connector according to claim 1,
further comprising a shielding plate integrally formed with the
second insulated member and between the first receptacle terminals
and the second receptacle terminals.
14. An electrical receptacle connector, comprising: a base portion,
one end thereof extending a tongue portion to form an insulated
housing, wherein one of two opposite surfaces of the tongue portion
comprises an assembling surface, and the other surface of the
tongue portion comprises a specific portion opposite to the
assembling surface, the specific portion comprises a terminal
positioning portion, a surface texture of the terminal positioning
portion is different from a surface texture of the specific
portion; a plurality of first receptacle terminals each comprising
a first flat contact portion and a first tail portion extending
from the first flat contact portion, wherein the first flat contact
portions are formed and positioned with the assembling surface, and
front ends of the first flat contact portions are held in the
assembling surface, the first tail portions are formed with the
base portion; a plurality of second receptacle terminals each
comprising a second flat contact portion and a second tail portion
extending from the second flat contact portion, wherein the second
flat contact portions are formed and positioned with the terminal
positioning portion, and front ends of the second flat contact
portions are held in the terminal positioning portion, the second
tail portions are formed with the base portion; a shielding plate
in the base portion and the tongue portion, wherein the shielding
plate is between the first receptacle terminals and the second
receptacle terminals; and a metallic shell comprising a receptacle
cavity for receiving the base portion and the tongue portion.
15. The electrical receptacle connector according to claim 14,
further comprising a first conductive sheet and a second conductive
sheet respectively on two surfaces of the insulated housing.
16. The electrical receptacle connector according to claim 15,
wherein the first conductive sheet has two first contact legs at
two sides thereof, the two first contact legs pass through two
first through holes of the insulated housing and are in contact
with two first ground terminals which are at two sides of the first
receptacle terminals, respectively.
17. The electrical receptacle connector according to claim 15,
wherein the second conductive sheet has two second contact legs at
two sides thereof, the two second contact legs pass through two
second through holes of the insulated housing and are in contact
with two second ground terminals which are at two sides of the
second receptacle terminals, respectively.
18. The electrical receptacle connector according to claim 14,
wherein each of the first receptacle terminals comprises a first
engaging portion extending from a front portion of the
corresponding first flat contact portion and engaged into the
tongue portion.
19. The electrical receptacle connector according to claim 14,
wherein each of the second receptacle terminals comprises a second
engaging portion extending from a front portion of the
corresponding second flat contact portion and engaged into the
terminal positioning portion.
Description
CROSS-REFERENCE TO RELATED APPLICATION
This non-provisional application claims priority under 35 US.
.sctn.119(a) to Patent Application No. 201510608864.6 filed in
China, PC. In Sep. 23, 2015, the entire contents of which are
hereby incorporated by reference.
FIELD OF THE INVENTION
The instant disclosure relates to an electrical connector, and more
particular to an electrical receptacle connector.
BACKGROUND
Generally, Universal Serial Bus (US) is a serial bus standard to
the PC architecture with a focus on computer interface, consumer
and productivity applications. The existing Universal Serial Bus
(US) interconnects have the attributes of plug-and-play and ease of
use by end users. Now, as technology innovation marches forward,
new kinds of devices, media formats and large inexpensive storage
are converging. They require significantly more bus bandwidth to
maintain the interactive experience that users have come to expect.
In addition, the demand of a higher performance between the PC and
the sophisticated peripheral is increasing. The transmission rate
of US 2.0 is insufficient. As a consequence, faster serial bus
interfaces such as US 3.0, are developed, which may provide a
higher transmission rate so as to satisfy the need of a variety
devices.
The appearance, the structure, the contact ways of terminals, the
number of terminals, the pitches between terminals (the distances
between the terminals), and the pin assignment of terminals of a
conventional US type-C electrical connector are totally different
from those of a conventional US electrical connector. A
conventional US type-C electrical receptacle connector includes a
plastic core, upper and lower receptacle terminals held on the
plastic core, and an outer iron shell circularly enclosing the
plastic core. Normally, the plastic core of a conventional US
type-C electrical receptacle connector is an assembly of several
plastic components, and the upper receptacle terminals and the
lower receptacle terminals are respectively assembled with the
plastic components.
SUMMARY OF THE INVENTION
The plastic components are combined with each other merely by
assembling means; once the plastic components cannot fitted with
each other properly, the structural strength of the assembly is
reduced and some of the plastic components may even detach off the
assembly. Moreover, because contact portions of the receptacle
terminals are not positioned by a tongue portion of the connector,
the receptacle terminals may be detached from the plastic core
during the operation. Therefore, how to solve the aforementioned
problem is an issue.
In view of this, an embodiment of the instant disclosure provides
an electrical receptacle connector. The electrical receptacle
connector comprises a second terminal module, a plurality of first
receptacle terminals, and a metallic shell. The second terminal
module comprises a plurality of second receptacle terminals and a
second insulated member integrally formed with the second
receptacle terminals. Each of the second receptacle terminals
comprises a second flat contact portion. The second insulated
member has a terminal positioning portion positioned with the
second flat contact portions. The terminal positioning portion
comprises a disposing surface. Front ends of the second flat
contact portions are held in the disposing surface. The first
receptacle terminals are on the second terminal module. The first
receptacle terminals are integrally formed with a first insulated
member to form a first terminal module. The first insulated member
comprises a tongue portion. One of two opposite surfaces of the
tongue portion comprises an assembling surface, and the other
surface of the tongue portion comprises a specific portion opposite
to the assembling surface. First flat contact portions of the first
receptacle terminals are positioned with the assembling surface,
and front ends of the first flat contact portions are held in the
assembling surface. The terminal positioning portion is held in the
tongue portion. The disposing surface of the terminal positioning
portion and the specific portion of the tongue portion are at a
same plane, and a surface texture of the terminal positioning
portion is different from a surface texture of the specific
portion. The metallic shell comprises a receptacle cavity for
receiving the first terminal module and the second terminal
module.
In one embodiment, the first receptacle terminals are positioned by
a positioning block, so that positions of the first receptacle
terminals and distances between adjacent first receptacle terminals
are fixed. The positioning block is enclosed by the first insulated
member.
In one embodiment, each of the first receptacle terminals comprises
a first engaging portion extending from a front portion of the
corresponding first flat contact portion and engaged into the
tongue portion.
In one embodiment, each of the second receptacle terminals
comprises a second engaging portion extending from a front portion
of the corresponding second flat contact portion and engaged into
the terminal positioning portion.
In one embodiment, the first insulated member comprises a first
base, and the tongue portion is extending from one end of the first
base. The second insulated member comprises a second base, and the
terminal positioning portion is extending from one end of the
second base. The first base is integrally formed on the second
base. Moreover, a surface texture of the first base is different
from a surface texture of the second base. In addition, each of the
first receptacle terminals further comprises a first tail portion
extending, from the corresponding first flat contact portion, out
of a bottom of the first base, and each of the second receptacle
terminals further comprises a second tail portion extending from
the second flat contact portion, out of a bottom of the second
base. The first tail portions are aligned with the second tail
portions by an offset. Additionally, the first insulated member
comprises a thicken block near to the first base and the second
base, and the thicken block covers a portion between the terminal
positioning portion and the second base.
In one embodiment, the electrical receptacle connector further
comprises a first conductive sheet and a second conductive sheet
respectively on the first insulated member and the second insulated
member. Furthermore, the first conductive sheet has two first
contact legs at two sides thereof. The two first contact legs pass
through two first through holes of the first insulated member and
are in contact with two first ground terminals which are at two
sides of the first receptacle terminals, respectively. Likewise,
the second conductive sheet has two second contact legs at two
sides thereof. The two second contact legs pass through two second
through holes of the second insulated member and are in contact
with two second ground terminals which are at two sides of the
second receptacle terminals, respectively.
In one embodiment, the specific portion of the tongue portion
comprises a separating portion formed around a periphery of the
terminal positioning portion.
In one embodiment, the electrical receptacle connector further
comprises a shielding plate integrally formed with the second
insulated member and between the first receptacle terminals and the
second receptacle terminals.
Another embodiment of the electrical receptacle connector comprises
a base portion, a plurality of first receptacle terminals, a
plurality of second receptacle terminals, a shielding plate, and a
metallic shell. One end of the base portion extends a tongue
portion to form an insulated housing. One of two opposite surfaces
of the tongue portion comprises an assembling surface, and the
other surface of the tongue portion comprises a specific portion
opposite to the assembling surface. The specific portion comprises
a terminal positioning portion. A surface texture of the terminal
positioning portion is different from a surface texture of the
specific portion. Each of the first receptacle terminals comprises
a first flat contact portion and a first tail portion extending
from the first flat contact portion. The first flat contact
portions are formed and positioned with the assembling surface,
front ends of the first flat contact portions are held in the
assembling surface, and the first tail portions are formed with the
base portion. Each of the second receptacle terminals comprises a
second flat contact portion and a second tail portion extending
from the second flat contact portion. The second flat contact
portions are formed and positioned with the terminal positioning
portion, front ends of the second flat contact portions are held in
the terminal positioning portion, and the second tail portions are
formed with the base portion. The shielding plate is in the base
portion and the tongue portion. The shielding plate is between the
first receptacle terminals and the second receptacle terminals. The
metallic shell comprises a receptacle cavity for receiving the base
portion and the tongue portion.
Based on the above, after the second insulated member is formed,
the first receptacle terminals are disposed on the second insulated
member. Next, the terminal positioning portion is assembled with
the second insulated member by molding or glue pouring. The
terminal positioning portion is further positioned with the first
receptacle terminals. Therefore, the first insulated member and the
second insulated member are integrally formed with each other.
Accordingly, the first receptacle terminals, the second receptacle
terminals, the first insulated member, and the second insulated
member are firmly positioned with each other. Hence, when the
connector is impacted by a foreign force, the components of the
connector would not detach from each other easily. Moreover, after
the assembling procedure, the surface of the terminal positioning
portion and the surface of the tongue portion are different in
texture for indicating different forming procedures. Additionally,
the first and the second engaging portions of the first and the
second receptacle terminals are engaged into the tongue portion and
the terminal positioning portion, respectively. Accordingly, the
flat contact portions of the electrical receptacle connector would
not detach off the tongue portion and the terminal positioning
portion after the connector is used for a period.
Furthermore, the first receptacle terminals and the second
receptacle terminals are arranged upside down, and the
pin-assignment of the flat contact portions of the first receptacle
terminals is left-right reversal with respect to that of the flat
contact portions of the second receptacle terminals. Accordingly,
the electrical receptacle connector can have a 180-degree
symmetrical, dual or double orientation design and pin assignments
which enables the electrical receptacle connector to be mated with
a corresponding plug connector in either of two intuitive
orientations, i.e. An either upside-up or upside-down directions.
Therefore, when an electrical plug connector is inserted into the
electrical receptacle connector with a first orientation, the flat
contact portions of the first receptacle terminals are in contact
with upper-row plug terminals of the electrical plug connector.
Conversely, when the electrical plug connector is inserted into the
electrical receptacle connector with a second orientation, the flat
contact portions of the second receptacle terminals are in contact
with the upper-row plug terminals of the electrical plug connector.
Note that, the inserting orientation of the electrical plug
connector is not limited by the electrical receptacle connector of
the instant disclosure.
Detailed description of the characteristics and the advantages of
the instant disclosure are shown in the following embodiments. The
technical content and the implementation of the instant disclosure
should be readily apparent to any person skilled in the art from
the detailed description, and the purposes and the advantages of
the instant disclosure should be readily understood by any person
skilled in the art with reference to content, claims, and drawings
in the instant disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
The instant disclosure will become more fully understood from the
detailed description given herein below for illustration only, and
thus not limitative of the instant disclosure, wherein:
FIG. 1 illustrates a perspective view of an electrical receptacle
connector according to a first embodiment of the instant
disclosure;
FIG. 2 illustrates an exploded view of the electrical receptacle
connector of the first embodiment;
FIG. 3 illustrates an exploded view of receptacle terminals of the
electrical receptacle connector;
FIG. 4 illustrates a schematic view (1) showing an assembling
procedure of the electrical receptacle connector of the first
embodiment;
FIG. 5 illustrates a schematic view (2) showing an assembling
procedure of the electrical receptacle connector of the first
embodiment;
FIG. 6 illustrates a schematic view (3) showing an assembling
procedure of the electrical receptacle connector of the first
embodiment;
FIG. 7 illustrates a schematic view (4) showing an assembling
procedure of the electrical receptacle connector of the first
embodiment;
FIG. 8 illustrates a schematic configuration diagram of the
receptacle terminals of the electrical receptacle connector;
FIG. 9 illustrates a top view of the electrical receptacle
connector of the first embodiment;
FIG. 10 illustrates an exploded view of an electrical receptacle
connector according to a second embodiment of the instant
disclosure;
FIG. 11 illustrates a schematic view (1) showing an assembling
procedure of the electrical receptacle connector of the second
embodiment;
FIG. 12 illustrates a schematic view (2) showing an assembling
procedure of the electrical receptacle connector of the second
embodiment; and
FIG. 13 illustrates a schematic view (3) showing an assembling
procedure of the electrical receptacle connector of the second
embodiment.
DETAILED DESCRIPTION
Please refer to FIGS. 1 and 2, illustrating an electrical
receptacle connector 100 of an exemplary embodiment of the instant
disclosure. FIG. 1 illustrates a perspective view of an electrical
receptacle connector according to a first embodiment of the instant
disclosure. FIG. 2 illustrates an exploded view of the electrical
receptacle connector. In this embodiment, the electrical receptacle
connector 100 is assembled with a circuit board 8 by sinking
technique. That is, one side of the circuit board 8 is cut to form
a crack, and the electrical receptacle connector 100 is positioned
at the crack and extending toward the side portion of the circuit
board 8. In this embodiment, the electrical receptacle connector
100 can provide a reversible or dual orientation US Type-C
connector interface and pin assignments, i.e., a US Type-C
receptacle connector. In this embodiment, the electrical receptacle
connector 100 comprises a metallic shell 11, a first terminal
module 2a, and a second terminal module 2b.
Please refer to FIGS. 1 and 2. In this embodiment, the metallic
shell 11 is a hollowed shell, and the metallic shell 11 comprises a
shell body 111 and a receptacle cavity 112 formed in the shell body
111. In other words, the metallic shell 11 comprises a receptacle
cavity 112 for receiving the first terminal module 2a and the
second terminal module 2b. In this embodiment, the metallic shell
11 may be a tubular member 14 and the receptacle cavity 112 is
formed in the tubular member 14. The metallic shell 11 may be
formed by a multi-piece member; in such embodiment, the metallic
shell 11 comprises an inner shell 121 and a cover plate 122,
wherein the inner shell 121 is a hollowed shell and encloses the
insulated housing 21, and the cover plate 122 is a hollowed shell
and encloses the inner shell 121, but embodiments are not limited
thereto. In some embodiments, the cover plate 122 may be a
semi-tubular member having a U-shape cross section, and the
semi-tubular member covers the top and the two sides of the inner
shell 121. In addition, an insertion opening 113 with oblong shaped
is formed on one side of the metallic shell 11, and the insertion
opening 113 communicates with the receptacle cavity 112.
Please refer to FIGS. 1 and 2. In this embodiment, the insulated
housing 21 comprises a base portion 24 and a tongue portion 211
extending from one end of the base portion 24. In this embodiment,
the insulated housing 21 comprises a first insulated member 21a and
a second insulated member 21b integrally formed with each other.
The base portion 24 comprises a first base 241 and a second base
242. The first base 241 is adjacent to the first insulated member
21a. The second base 242 is adjacent to the second insulated member
21b.
Please refer to FIGS. 1 and 2. In this embodiment, the first
terminal module 2a is received in the receptacle cavity 112 of the
metallic shell 11. The first terminal module 2a comprises a first
insulated member 21a and a plurality of first receptacle terminals
31. The first insulated member 21a comprises the tongue portion 211
and a specific portion 213 (as shown in FIG. 9). The tongue portion
211 has two opposite surfaces, one is a first surface 211a , and
the other is the second surface 211b. In addition, a front lateral
surface 211c of the tongue portion 211 is connected the first
surface 211a with the second surface 211b and is close to the
insertion opening 113. In other words, the front lateral surface
211c is near to the insertion opening 113 and perpendicularly
connected to the first surface 211a and the second surface 211b,
respectively. Specifically, the two surfaces of the tongue portion
211 respectively comprise the specific portion 213 and an
assembling surface 224 opposite to the specific portion 213 (as
shown in FIGS. 3 and 7). Flat contact portions 315 of the first
receptacle terminals 31 are positioned with the assembling surface
214, and front ends of the flat contact portions 315 are held in
the assembling surface 214.
Please refer to FIGS. 2, 3, 7, and 9. The first receptacle
terminals 31 are on the first insulated member 21a. In other word,
the first receptacle terminals 31 are on the second terminal module
2b, and the first receptacle terminals 31 are integrally formed
with the first insulated member 21a to form the first terminal
module 2a. Each of the first receptacle terminals 31 comprises a
flat contact portion 315 held on one of two opposite surfaces of
the tongue portion 211 (which may be the first surface 211a or the
second surface 211b), and the specific portion 213 is formed on the
other surface of the tongue portion 211 (which may be the second
surface 211b or the first surface 211a). The specific portion 213
is a portion for disposing the flat contact portions 415 of the
second receptacle terminals 41.
Please refer to FIGS. 2, 5, and 13. The second terminal module 2b
is received in the receptacle cavity 112 of the metallic shell 11.
The first terminal module 2a is assembled with the second terminal
module 2b. The second terminal module 2b comprises a second
insulated member 21b and a plurality of second receptacle terminals
41. The second receptacle terminals 41 are on the second insulated
member 21b. In other words, the second receptacle terminals 41 and
the second insulated member 21b are integrally formed with each
other. In addition, each of the second receptacle terminals 41
comprises a flat contact portion 415 (as shown in FIG. 3).
Moreover, the second insulated member 21b comprises a terminal
positioning portion 221. The terminal positioning portion 221 is on
the specific portion 213. The flat contact portions 415 are on a
surface of the terminal positioning portion 221. In other words,
the surface of the terminal positioning portion 221 comprises a
disposing surface 221a , and front ends of the flat contact
portions 415 are held in the disposing surface 221a. In addition,
the terminal positioning portion 221 is held in the tongue portion
211. The disposing surface 221a, of the terminal positioning
portion 221 and the specific portion 213 of the tongue portion 211
are at the same plane, and the surface texture of the terminal
positioning portion 221 is different from the surface texture of
the specific portion 213.
In this embodiment, the terminal positioning portion 221 and the
second receptacle terminals 41 are combined with each other in a
first processing procedure. Next, the second insulated member 21b
is assembled with an assembly of the second receptacle terminals 41
and the terminal positioning portion 221 as well as the shielding
plate 7 by insert-molding techniques (as shown in FIG. 4). In other
words, the second terminal module 2b is made firstly. Next, the
first receptacle terminals 31 are placed on the terminal
positioning portion 221 (as shown in FIGS. 4 and 5). The first
receptacle terminals 31 are positioned by a positioning block 5, so
that positions of the first receptacle terminals 31 and distances
between adjacent first receptacle terminals 31 are fixed. Moreover,
the positioning block 5 is enclosed by the first insulated member
21a. Then, after the first receptacle terminals 31 are disposed on
the second terminal module 2b, the first receptacle terminals 31
and the first insulated member 21a are integrally formed with each
other to form the first terminal module 2a (as shown in FIG. 6). In
other words, in a second processing procedure, the first insulated
member 21a is formed in the mold and assembled with the second
insulated member 21b by insert-molding techniques. Thereafter, the
first insulated member 21a covers on the second insulated member
21b and the material band of the terminals is removed (as shown in
FIGS. 6 and 7). The first insulated member 21a and the second
insulated member 21b are integrally formed with each other, so that
the first receptacle terminals 31, the second receptacle terminals
41, the first insulated member 21a, and the second insulated member
21b can be firmly positioned with each other. Therefore, when the
connector is impacted by a foreign force, the components of the
connector would not detach from each other easily.
Please refer to FIG. 9. In this embodiment, the tongue portion 211
encloses most of the terminal positioning portion 221 and only an
exposed surface of the terminal positioning portion 221 is exposed
from the tongue portion 211. In addition, the exposed surface of
the terminal positioning portion 221 and the other surface of the
tongue portion 211 are at the same horizontal plane. In other
words, the terminal positioning portion 221 is approximately at the
middle portion of the tongue portion 211. Moreover, the surface
texture of the exposed surface of the terminal positioning portion
221 and the surface texture of the second surface 211b of the
tongue portion 211 are different from each other (as shown in FIG.
9, portions at the middle portion of the tongue portion 211 with
spots filled therein indicate the terminal positioning portion
221).
The terminal positioning portion 221 and the tongue portion 211 are
formed in different insert-molding procedures, therefore the
surface texture of the exposed surface of the terminal positioning
portion 221 is different from the surface texture of the second
surface 211b of the tongue portion 211. In other words, the surface
structures between the two surfaces are different. Accordingly,
when the surface structures between two surfaces are different, two
components respectively having the two surfaces may be formed in
different time durations. In this embodiment, the exposed surface
of the terminal positioning portion 221 is rough, and the other
surface of the tongue portion 211 is smooth, but embodiments are
not limited thereto. Alternatively, the exposed surface of the
terminal positioning portion 221 may be smooth, and the other
surface of the tongue portion 211 may be rough.
Please refer to FIG. 9. In this embodiment, the specific portion
213 of the tongue portion 211 comprises a separating portion 216
surrounding a periphery of the terminal positioning portion 211.
When the terminal positioning portion 221 is insert-molded with the
tongue portion 211, the separating portion 216 is a trace
indicating that the tongue portion 211 and the terminal positioning
portion 221 are processed. Therefore, it can be understood that the
tongue portion 211 and the terminal positioning portion 221 are
formed by different processing procedures.
Please refer to FIGS. 2, 5, and 6. In this embodiment, the first
insulated member 21a comprises a first base 241, and the tongue
portion 211 is extending from one end of the first base 241. The
second insulated member 21b comprises a second base 242, and the
terminal positioning portion 221 is extending from one end of the
second base 242. The first base 241 is formed on the second base
242. The tongue portion 211 is a piece for mating with an
electrical plug connector, while the terminal positioning member
252 is a semi-product structure held in the tongue portion 211. In
addition, in this embodiment, the first insulated member 21a
comprises the tongue portion 211, but embodiments are not limited
thereto. In some embodiments, the tongue portion 211 may be
extending from the second base 242. In other words, the second
insulated member 21b comprises the tongue portion 211, and the
first insulated member 21a excludes the tongue portion 211.
Please refer to FIG. 9. In this embodiment, the surface texture of
the first base 241 is different from the surface texture of the
second base 242. Since the terminal positioning portion 221 and the
tongue portion 211 are formed in different insert-molding
procedures, the surface textures of the two surfaces are different.
Accordingly, when the surface structures between two surfaces are
different, two components individually having the two surfaces may
be formed in different time durations (as shown in FIG. 9, the
second base 242 is indicated by portions filled with spots).
Please refer to FIG. 9. In this embodiment, the first insulated
member 21a comprises a thicken block 215 on a rear portion of the
tongue portion 211 and near to the first base 241 and the second
base 242. The thicken block 215 covers a portion between the
terminal positioning portion 221 and the second base 242.
Accordingly, the structural strength of the tongue portion 211 can
be improved by the thicken block 215.
Please refer to FIG. 2. In this embodiment, the electrical
receptacle connector 100 further comprises a first conductive sheet
61 and a second conductive sheet 62 symmetrical with each other.
From a front view of each of the conductive sheets 61, 62, each of
the conductive sheets 61, 62 is an elongated sheet having widened
U-shaped cross section, and the structure of the first conductive
sheet 61 is the same as that of the second conductive sheet 62. The
first conductive sheet 61 and the second conductive sheet 62 are
respectively on the first insulated member 21a and the second
insulated member 21b. The first conductive sheet 61 has two first
contact legs 611 at two sides thereof. The two first contact legs
611 pass through two first through holes 2191 of the first
insulated member 21a and are in contact with two ground terminals
313 which are at two sides of the first receptacle terminals 31,
respectively. Conversely, the second conductive sheet 62 has two
second contact legs 621 at two sides thereof. The two second
contact legs 621 passes through two second through holes 2192 of
the second insulated member 21b and are in contact with two ground
terminals 413 which are at two sides of the second receptacle
terminals 41. Therefore, the first conductive sheet 61 and the
second conductive sheet 62 are respectively in contact with and
conducted with the ground terminals 313 of the first receptacle
terminals 31 and the ground terminals 413 of the second receptacle
terminals 41. The first conductive sheet 61 and the second
conductive sheet 62 are respectively in contact with the metallic
shell 11. Therefore, when the electrical receptacle connector 100
is mated with an electrical plug connector, a metallic shell of the
electrical plug connector is in contact with the first conductive
sheet 61 and the second conductive sheet 62, so that the metallic
shell of the electrical plug connector and the metallic shell 11 of
the electrical receptacle connector 100 can be connected with each
other. Accordingly, the connection between the shells of the
connectors can be grounded and the electromagnetic interference
(EMI) during the signal transmission can be reduced by the first
conductive sheet 61 and the second conductive sheet 61.
Please refer to FIGS. 2, 3, and 8. The first receptacle terminals
31 comprise a plurality of first signal terminals 311, power
terminals 312, and ground terminals 313. The first signal terminals
31 comprises a plurality of pairs of first high-speed signal
terminals 3111/3113 and a pair of first low-speed signal terminals
3112. Referring to FIG. 7, the first receptacle terminals 31
comprise, from left to right, a ground terminal 313 (Gnd), a first
pair of first high-speed signal terminals 3111 (TX1+-, differential
signal terminals for high-speed signal transmission), a power
terminal 312 (Power/VBUS), a first function detection terminal 3141
(CC1, a terminal for inserting orientation detection of the
connector and for cable recognition), a pair of first low-speed
signal terminals 3112 (D+-, differential signal terminals for
low-speed signal transmission), a supplement terminal 3142 (SUCH, a
terminal can be reserved for other purposes), another power
terminal 312 (Power/VBUS), a second pair of first high-speed signal
terminals 3113 (RX2+-, differential signal terminals for high-speed
signal transmission), and another ground terminal 313 (Gnd). In
this embodiment, twelve first receptacle terminals 31 are provided
for transmitting US 3.0 signals. Each pair of the first high-speed
signal terminals 3111/3113 is between the corresponding power
terminal 312 and the adjacent ground terminal 313. The pair of the
first low-speed signal terminals 3112 is between the first function
detection terminal 3141 and the supplement terminal 3142.
In some embodiments, the rightmost ground terminal 313 (Gnd) (or
the leftmost ground terminal 313 (Gnd)) or the first supplement
terminal 3142 (SBU1) can be further omitted. Therefore, the total
number of the first receptacle terminals 31 can be reduced from
twelve terminals to seven terminals. Furthermore, the ground
terminal 313 (Gnd) may be replaced by a power terminal 312
(Power/VBUS) and provided for power transmission. In this
embodiment, the width of the power terminal 312 (Power/VBUS) may
be, but not limited to, equal to the width of the first signal
terminal 311. In some embodiments, the width of the power terminal
312 (Power/VBUS) may be greater than the width of the first signal
terminal 311 and an electrical receptacle connector 100 having the
power terminal 312 (Power/VBUS) can be provided for large current
transmission.
Please refer to FIGS. 3, 4, and 9. The first receptacle terminals
31 are held in the first insulated member 21a and formed as the
upper-row terminals of the electrical receptacle connector 100.
Each of the first receptacle terminals 31 comprises a flat contact
portion 315, a body portion 317, and a tail portion 316. For each
of the first receptacle terminals 31, the body portion 317 is held
in the first insulated member 21a, the flat contact portion 315 is
extending forward from the body portion 317 in the rear-to-front
direction and partly exposed upon the first surface 211a of the
tongue portion 211, and the tail portion 316 is extending backward
from the body portion 317 in the front-to-rear direction and
protruding from the rear of the first insulated member 21a.The
first signal terminals 311 are disposed on the first surface 211a
and transmit first signals (namely, US 3.0 signals). The tail
portions 316 are bent horizontally to form flat legs, named legs
manufactured by SMT (surface mounted technology), which can be
mounted or soldered on the surface of a printed circuit board by
using surface mount technology. Alternatively, the tail portions
316 may be extending downwardly to form vertical legs, named legs
manufactured by through-hie technology, which can be inserted into
holes drilled in a printed circuit board (PCB). In addition, the
overall width of the tail portions 316 is equal to the overall
width of the body portions 317. Therefore, the tail portion 316 and
the body portion 317 of each of the first receptacle terminals 31
are aligned along the same line, and the distance between two
adjacent tail portions 316 correspond the distance between two
adjacent contacts of the circuit board 8.
Please refer to FIGS. 3, 8, and 9. The second receptacle terminals
41 comprise a plurality of second signal terminals 411, power
terminals 412, and ground terminals 413. The second receptacle
terminals 41 comprise a plurality of pairs of second high-speed
signal terminals 4111/4113 and a pair of second low-speed signal
terminals 4112. Referring to FIG. 7, the second receptacle
terminals 41 comprise, from right to left, a ground terminal 413
(Gnd), a first pair of second high-speed signal terminals 4111
(TX2+-, differential signal terminals for high-speed signal
transmission), a power terminal 412 (Power/VBUS), a second function
detection terminal 4141 (CC2, a terminal for inserting orientation
detection of the connector and for cable recognition), a pair of
second low-speed signal terminals 4112 (D+-, differential signal
terminals for low-speed signal transmission), a supplement terminal
4142 (SBU2, a terminal can be reserved for other purposes), another
power terminals 412 (Power/VBUS), a second pair of second
high-speed signal terminals 4113 (RX1+-, differential signal
terminals for high-speed signal transmission), and another ground
terminal 413 (Gnd). In this embodiment, twelve second receptacle
terminals 41 are provided for transmitting US 3.0 signals. Each
pair of the second high-speed signal terminals 4111/4113 is between
the corresponding power terminal 412 and the adjacent ground
terminal 413. The pair of the second low-speed signal terminals
4112 is between the second function detection terminal 4141 and the
supplement terminal 4142.
In some embodiments, the rightmost ground terminal 413 (or the
leftmost ground terminal 413) or the second supplement terminal
4142 (SBU2) can be further omitted. Therefore, the total number of
the second receptacle terminals 41 can be reduced from twelve
terminals to seven terminals. Furthermore, the rightmost ground
terminal 413 may be replaced by a power terminal 412 and provided
for power transmission. In this embodiment, the width of the power
terminal 412 (Power/VBUS) may be, but not limited to, equal to the
width of the second signal terminal 411. In some embodiments, the
width of the power terminal 412 (Power/VBUS) may be greater than
the width of the second signal terminal 411 and an electrical
receptacle connector 100 having the power terminal 412 (Power/VBUS)
can be provided for large current transmission.
Please refer to FIGS. 3, 4, 8, and 9. The second receptacle
terminals 41 are held in the second insulated member 21b and formed
as the lower-row terminals of the electrical receptacle connector
100. In addition, the first receptacle terminals 31 are
substantially aligned parallel with the second receptacle terminals
41. In this embodiment, each of the second receptacle terminals 41
comprises a flat contact portion 415, a body portion 417, and a
tail portion 416. For each of the second receptacle terminals 41,
the body portion 417 is held in the second insulated member 21b and
the tongue portion 211, the flat contact portion 415 is extending
from the body portion 417 in the rear-to-front direction and partly
exposed upon the second surface 211b of the tongue portion 211, and
the tail portion 416 is extending backward from the body portion
417 in the front-to-rear direction and protruding from the rear of
the second insulated member 21b. The second signal terminals 411
are disposed at the second surface 211b and transmit second signals
(i.e., US 3.0 signals). The tail portions 416 are bent horizontally
to form flat legs, named legs manufactured by SMUT (surface mounted
technology), which can be mounted or soldered on the surface of a
printed circuit board by using surface mount technology.
Alternatively, the tail portions 416 may be extending downwardly to
form vertical legs, named legs manufactured by through-hole
technology, which can be inserted into holes drilled in a printed
circuit board (PCB). The tail portions 316 of the first receptacle
terminals 31 and the tail portions 416 of the second receptacle
terminals 41 are arranged in a staggered manner from the top
view.
Please refer to FIGS. 3 and 7. In this embodiment, each of the
first receptacle terminals 31 comprises a first engaging portion
315a extending from a front portion of the corresponding flat
contact portion 315 to form a hook structure. For the same first
receptacle terminal 31, the first engaging portion 315a is opposite
to the tail portion 316. Additionally, after the first insulated
member 21a is formed, the first engaging portions 315a of the first
receptacle terminals 31 are engaged into the tongue portion 211.
Accordingly, the flat contact portions 315 can be positioned on the
first surface 211a of the tongue portion 211 firmly. Hence, the
flat contact portions 315 of the electrical receptacle connector
100 would not detach off the first surface 211a of the tongue
portion 211 after the connector is used for a period.
Please refer to FIGS. 3 and 9. In this embodiment, each of the
second receptacle terminals 41 comprises a second engaging portion
415a extending from a front portion of the corresponding flat
contact portion 415 to form a hook structure. For the same second
receptacle terminal 41, the second engaging portion 415a is
opposite to the tail portion 416. Additionally, after the second
insulated member 21b is formed, the second engaging portions 415a
of the second receptacle terminals 41 are engaged into the terminal
positioning portion 221. Accordingly, the flat contact portions 415
can be positioned on the exposed surface of the terminal
positioning portion 221 firmly. Hence, the flat contact portions
415 of the electrical receptacle connector 100 would not detach off
the terminal positioning portion 221 after the connector is used
for a period.
Please refer to FIGS. 2 and 4. The electrical receptacle connector
100 comprises a shielding plate 7 between the first terminal module
2a and the second terminal module 2b. The shielding plate 7
comprises a plate body 71 and a plurality of legs 72. The plate
body 71 is between the flat contact portions 315 of the first
receptacle terminals 31 and the flat contact portions 415 of the
second receptacle terminals 41. In other words, the plate body 71
is integrally formed with the second insulated member 21b and
between the flat contact portions 315, 415, so that the plate body
71 is assembled on the surface of the second insulated member 21b.
Specifically, the plate body 71 may be lengthened and widened, so
that the front of the plate body 71 is near to the front lateral
surface 211c of the tongue portion 211 (as shown in FIGS. 5 and 6).
Two sides of the plate body 71 is protruding from two sides of the
tongue portion 211 for being in contact with an electrical plug
connector, and the rear of the plate body 71 is near to the rear of
the second insulated member 22. Accordingly, the plate body 71 can
be disposed on the tongue portion 211 and the second insulated
member 21b, and the structural strength of the tongue portion 211
and the shielding performance of the tongue portion 211 can be
improved.
In addition, the legs 72 are extending from the rear portion of the
shielding plate 7 to form vertical legs. That is, the legs 72 are
exposed from the second insulated member 21b and in contact with
the circuit board 8. In this embodiment, the crosstalk interference
can be reduced by the shielding of the shielding plate 7 when the
flat contact portions 315, 415 transmit signals. Furthermore, the
structural strength of the tongue portion 211 can be improved by
the assembly of the shielding plate 7. In addition, the legs 72 of
the shielding plate 7 are exposed from the second insulated member
21b and in contact with the circuit board 8 for conduction and
grounding.
Please refer to FIG. 4. The shielding plate 7 further comprises a
plurality of hooks 73. The hooks 73 are extending outward from two
sides of the front portion of the plate body 71 and protruding out
of the front lateral surface 211c and two sides of the tongue
portion 211. When an electrical plug connector is mated with the
electrical receptacle connector 100, elastic pieces at two sides of
an insulated housing of the electrical plug connector are engaged
with the hooks 73, and the elastic pieces would not wear against
the tongue portion 211 of the electrical receptacle connector 100.
Hence, the shielding plate 7 can be in contact with the metallic
shell 11 for conduction and grounding.
Please refer to FIGS. 1, 2, and 8. In this embodiment, the first
receptacle terminals 31 and the second receptacle terminals 41 are
disposed upon the first surface 211a and the second surface 211b of
the tongue portion 211, respectively, and pin-assignments of the
first receptacle terminals 31 and the second receptacle terminals
41 are point-symmetrical with a central point of the receptacle
cavity 112 as the symmetrical center. In other words,
pin-assignments of the first receptacle terminals 31 and the second
receptacle terminals 41 have 180-degree symmetrical design with
respect to the central point of the receptacle cavity 112 as the
symmetrical center. The dual or double orientation design enables
an electrical plug connector to be inserted into the electrical
receptacle connector 100 in either of two intuitive orientations,
i.e., in either upside-up or upside-down directions. Here,
point-symmetry means that after the first receptacle terminals 31
(or the second receptacle terminals 41), are rotated by 180 degrees
with the symmetrical center as the rotating center, the first
receptacle terminals 31 and the second receptacle terminals 41 are
overlapped. That is, the rotated first receptacle terminals 31 are
arranged at the position of the original second receptacle
terminals 41, and the rotated second receptacle terminals 41 are
arranged at the position of the original first receptacle terminals
31. In other words, the first receptacle terminals 31 and the
second receptacle terminals 41 are arranged upside down, and the
pin assignments of the flat contact portions 315 are left-right
reversal with respect to that of the flat contact portions 415. An
electrical plug connector is inserted into the electrical
receptacle connector 100 with a first orientation where the first
surface 211a is facing up, for transmitting first signals.
Conversely, the electrical plug connector is inserted into the
electrical receptacle connector 100 with a second orientation where
the first surface 211a is facing down, for transmitting second
signals. Furthermore, the specification for transmitting the first
signals is conformed to the specification for transmitting the
second signals. Note that, the inserting orientation of the
electrical plug connector is not limited by the electrical
receptacle connector 100 according embodiments of the instant
disclosure.
Additionally, in some embodiments, the electrical receptacle
connector 100 is devoid of the first receptacle terminals 31 (or
the second receptacle terminals 41) when an electrical plug
connector to be mated with the electrical receptacle connector 100
has upper and lower plug terminals. In the case that the first
receptacle terminals 31 are omitted, the upper plug terminals or
the lower plug terminals of the electrical plug connector are in
contact with the second receptacle terminals 41 of the electrical
receptacle connector 100 when the electrical plug connector is
inserted into the electrical receptacle connector 100 with the dual
orientations. Conversely, in the case that the second receptacle
terminals 41 are omitted, the upper plug terminals or the lower
plug terminals of the electrical plug connector are in contact with
the first receptacle terminals 31 of the electrical receptacle
connector 100 when the electrical plug connector is inserted into
the electrical receptacle connector 100 with the dual
orientations.
Please refer to FIG. 1 and FIGS. 2 to 8. In this embodiment, as
viewed from the front of the receptacle terminals 31, 41, the
position of the first receptacle terminals 31 corresponds to the
position of the second receptacle terminals 41. In other words, the
positions of the flat contact portions 315 are respectively aligned
with the positions of the flat contact portions 415, but
embodiments are not limited thereto. In some embodiments, the first
receptacle terminals 31 may be aligned by an offset with respect to
the second receptacle terminals 41. That is, the flat contact
portions 315 are aligned by an offset with respect to the flat
contact portions 415. Accordingly, because of the offset alignment
of the flat contact portions 315, 415, the crosstalk between the
first receptacle terminals 31 and the second receptacle terminals
41 can be reduced during signal transmission. It is understood
that, when the receptacle terminals 31, 41 of the electrical
receptacle connector 100 have the offset alignment, plug terminals
of an electrical plug connector to be mated with the electrical
receptacle connector 100 would also have the offset alignment.
Hence, the plug terminals of the electrical plug connector can be
in contact with the receptacle terminals 31, 41 of the electrical
receptacle connector 100 for power or signal transmission.
In the foregoing embodiments, the receptacle terminals 31, 41 are
provided for transmitting US 3.0 signals, but embodiments are not
limited thereto. In some embodiments, for the first receptacle
terminals 31 in accordance with transmission of US 2.0 signals, the
first pair of the first high-speed signal terminals 3111 (TX1+-)
and the second pair of the first high-speed signal terminals 3113
(RX2+-) are omitted, and the pair of the first low-speed signal
terminals 3112 (D+-) and the power terminals 312 (Power/VBUS) are
retained. While for the second receptacle terminals 41 in
accordance with transmission of US 2.0 signals, the first pair of
the second high-speed signal terminals 4111 (TX2+-) and the second
pair of the second high-speed signal terminals 4113 (RX1+-) are
omitted, and the pair of the second low-speed signal terminals 4112
(D+-) and the power terminals 412 (Power/VBUS) are retained.
Please refer to FIGS. 2 and 7. In this embodiment, the first
terminal module 2a further comprises a rear block member 25 and two
through grooves 251. The rear block member 25 is extending outward
from the rear portion of the first insulated member 21a. In this
embodiment, the rear block member 25 covers rear portions of the
tail portions 416 of the second receptacle terminals 41. The two
through grooves 251 are formed on the middle portion of the rear
block member 25 and corresponding to the positions of the tail
portions 416. Accordingly, a user can check the soldering condition
between the tail portions 416 and the circuit board 8 through the
through grooves 251. In this embodiment, the number of the through
grooves 251 is two, but embodiments are not limited thereto.
Alternatively, the first terminal module 2a may comprise one
through groove 251; in a further option, the first terminal module
2a may comprise three or more through grooves 251.
FIGS. 10 to 13 illustrate an electrical receptacle connector 100
according to a second embodiment of the instant disclosure. The
processing procedures of the first insulated member 21a and the
second insulated member 21b in the second embodiment are different
from that in the first embodiment. In addition, textures of
surfaces of the connector of the first embodiment is different from
that of the second embodiment. In this embodiment, the first
insulated member 21a further comprises a second specific portion
(namely, the assembling surface 214) formed on a surface of the
tongue portion 211 and connecting to the specific portion 213. The
other surface of the terminal positioning portion 221 and the
surface of the tongue portion 211 are at the same horizontal plane.
In addition, the surface texture of other surface of the terminal
positioning portion 221 is different from the surface texture of
the surface of the tongue portion 211 (as shown in FIGS. 12 and 13,
the terminal positioning portion 221 is indicated by portions
filled with spots).
Please refer to FIGS. 10 to 13. In this embodiment, the first
terminals module 2a having the tongue portion 211 is formed in a
first processing procedure; that is, the first insulated member
21a, the first receptacle terminals 31 (lower terminals), and the
shielding plate 7 are formed with each other by insert-molding
techniques. The flat contact portions 315 are on the other surface
of the tongue portion 211. Next, the first insulated member 21a is
recessed to form a filling groove 217 and a plurality of
protrusions 218. A front portion of the filling groove 217 is
recessed on the surface of the tongue portion 211, and the
protrusions 218 are aligned in the filling groove 217 along a
transversal direction. Each of the protrusions 218 corresponds to
the corresponding flat contact portion 415. Therefore, the flat
contact portions 415 are leaned against the protrusions 218,
positioned with the protrusions 218, and not moved freely. The
protrusions 218 may be applied on the terminal positioning portion
221 in the first embodiment for being leaned against the flat
contact portions 415 (as shown in FIG. 2).
It is understood that, in this embodiment, the second terminal
module 2b is formed in a second processing procedure; that is, the
second insulated member 21b and the second receptacle terminals 41
(upper terminals) are formed with each other by insert-molding
techniques. The second insulated member 21b is at the rear portion
of the flat contact portions 415. The second insulated member 21b
is assembled on the rear portion of the filling groove 217, so that
the flat contact portions 415 can be positioned on the protrusions
218. Next, glues in liquid state can be poured into the filling
groove 217, so that two sides of each of the flat contact portions
415 are enclosed by the glues and only the surface of each of the
flat contact portions 415 is exposed. In detail, the glues in
liquid state are poured into the filling groove 217 from the
surface of the tongue portion 211 (i.e., the first surface 211a)
and pass through the hole 75 of the shielding plate 7 to be
distributed over the other surface of the tongue portion 211 (i.e.,
the second surface 211b). After the glues are dried and set to form
a solid terminal positioning portion 221, the terminal positioning
portion 221 can be firmly positioned and fixed with the first
receptacle terminals 31, the second receptacle terminals 41, the
first insulated member 21a, the second insulated member 21b, and
the shielding plate 7. Therefore, when the connector is impacted by
a foreign force, the components of the connector would not detach
from each other easily.
Specifically, in this embodiment, the surface texture of the other
surface of the terminal positioning portion 221 is different from
the surface of the tongue portion 211 (i.e., the first surface
211a), just opposite to the case described in the first embodiment;
namely, in the first embodiment, the surface texture of the surface
of the terminal positioning portion 221 is different from the other
surface of the tongue portion 211. In detail, because the terminal
positioning portion 221 is held in the tongue portion 211, in this
embodiment, the surface difference between the terminal positioning
portion 221 and the surface of the tongue portion 211 (i.e., the
first surface 211a) can be directly checked from the surface of the
tongue portion 211 (the first surface 211a); while in the first
embodiment, the surface difference between the terminal positioning
portion 221 and the other surface of the tongue portion 211 (i.e.,
the second surface 211b) can be directly checked from the other
surface of the tongue portion 211.
Moreover, in this embodiment, the surface of the tongue portion 211
(i.e., the first surface 211a) communicates with the other surface
of the tongue portion 211 (i.e., the second surface 211b) through
the filling groove 217. That is, the specific portion 213 on the
other surface of the tongue portion (i.e., the second surface 211b)
communicates with the second specific portion (namely, the
assembling surface 214) of the surface of the tongue portion 211
(i.e., the first surface 211a). After the terminal positioning
portion 221 is formed, the other surface of the terminal
positioning portion 221 and the surface of the tongue portion 211
(i.e., the first surface 211a) are at the same horizontal plate. As
above, the two surface of the tongue portion 211 (i.e., the first
surface 211a and the second surface 211b) have different surface
textures and the two surfaces of the terminal positioning portion
221 have different surface textures. Accordingly, when the surface
structures between two surfaces are different, two components
individually having the two surfaces may be formed in different
time durations. In this embodiment, the surface of the terminal
positioning portion 221 is rough, and the other surface of the
tongue portion 211 is smooth, but embodiments are not limited
thereto. Alternatively, the surface of the terminal positioning
portion 221 may be smooth, and the other surface of the tongue
portion 211 may be rough.
Based on the above, after the second insulated member is formed,
the first receptacle terminals are disposed on the second insulated
member. Next, the terminal positioning portion is assembled with
the second insulated member by molding or glue pouring. The
terminal positioning portion is further positioned with the first
receptacle terminals. Therefore, the first insulated member and the
second insulated member are integrally formed with each other.
Accordingly, the first receptacle terminals, the second receptacle
terminals, the first insulated member, and the second insulated
member are firmly positioned with each other. Hence, when the
connector is impacted by a foreign force, the components of the
connector would not detach from each other easily. Moreover, after
the assembling procedure, the surface of the terminal positioning
portion and the surface of the tongue portion are different in
texture for indicating different forming procedures. Additionally,
the first and the second engaging portions of the first and the
second receptacle terminals are engaged into the tongue portion and
the terminal positioning portion, respectively. Accordingly, the
flat contact portions of the electrical receptacle connector would
not detach off the tongue portion and the terminal positioning
portion after the connector is used for a period.
Furthermore, the first receptacle terminals and the second
receptacle terminals are arranged upside down, and the
pin-assignment of the flat contact portions of the first receptacle
terminals is left-right reversal with respect to that of the flat
contact portions of the second receptacle terminals. Accordingly,
the electrical receptacle connector can have a 180-degree
symmetrical, dual or double orientation design and pin assignments
which enables the electrical receptacle connector to be mated with
a corresponding plug connector in either of two intuitive
orientations, i.e. An either upside-up or upside-down directions.
Therefore, when an electrical plug connector is inserted into the
electrical receptacle connector with a first orientation, the flat
contact portions of the first receptacle terminals are in contact
with upper-row plug terminals of the electrical plug connector.
Conversely, when the electrical plug connector is inserted into the
electrical receptacle connector with a second orientation, the flat
contact portions of the second receptacle terminals are in contact
with the upper-row plug terminals of the electrical plug connector.
Note that, the inserting orientation of the electrical plug
connector is not limited by the electrical receptacle connector of
the instant disclosure.
While the instant disclosure has been described by the way of
example and in terms of the preferred embodiments, it is to be
understood that the invention need not be limited to the disclosed
embodiments. On the contrary, it is intended to cover various
modifications and similar arrangements included within the spirit
and scope of the appended claims, the scope of which should be
accorded the broadest interpretation so as to encompass all such
modifications and similar structures.
* * * * *